Support running interpreter scripts #7
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If the program starts with `#!` (a shebang or hash-bang), the kernel
will (almost always; depends if `BINFMT_SCRIPT` is enabled) determine
which interpreter to exec and pass the script along as the first
argument. In this case, the argument will be `/proc/self/fd/{}`, which
gets closed if MFD_CLOEXEC is set.
We now check for `#!` and only set MFD_CLOEXEC if it's not there.
webern
approved these changes
Jun 23, 2020
tjkirch
approved these changes
Jun 23, 2020
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bors r=iliana,webern,tjkirch |
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If the program starts with
#!(a shebang or hash-bang), the kernel will (almost always; depends ifBINFMT_SCRIPTis enabled) determine which interpreter to exec and pass the script along as the first argument. In this case, the argument will be/proc/self/fd/{}, which gets closed if MFD_CLOEXEC is set.We now check for
#!and only set MFD_CLOEXEC if it's not there.cc @tjkirch, @webern